What is the main characteristic of sublevel caving?
A. Unsupported stopes
B. Caving of overlying waste
C. Backfilled stopes
D. Ore removal before stope completion
Answer: Option B
Solution (By Examveda Team)
Sublevel caving allows ore to be extracted as overlying waste caves in.The correct answer is: Caving of overlying wasteOre is blasted from sublevels, and cave propagates upward.Requires good caveability and ground control.This Question Belongs to Mining Engineering >> Mine Development And Mining Methods
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